//一些混合样式
.self-center(@pos: absolute) {
  position: @pos;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

.self-fill(@pos: absolute) {
  width: 100%;
  height: 100%;
  position: @pos;
  left: 0;
  top: 0;
}

.flex(@just: center, @align: center) {
  display: flex;
  justify-content: @just;
  align-items: @align;
}

.card {
  margin: 0 auto;
  width: 716px;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 3px 0 15px 0 rgba(0, 0, 0, 0.15),
    inset 1px 0 6px 0 rgba(255, 255, 255, 0.7);
}


.backOrange {
  background-image: linear-gradient(141deg,
      rgba(226, 105, 18, 0.6) 0%,
      rgba(228, 129, 60, .9) 100%), -webkit-gradient(radial, 70 130, 129, 70 130, 130, from(rgb(241, 110, 16)), color-stop(0.6, rgb(240, 208, 185)), to(rgb(255, 255, 255, .2))) !important;
  background-size: 750px 356px;
  background-repeat: no-repeat;
  background-position: right top;
}

.btn {
  width: 690px;
  height: 98px;
  border-radius: 6px;
  border: 1px solid;
  font-size: 32px;
}

.clickableBtn {
  .btn();
  color: #E16712;
  background: #fff;
}

.notClickBtn {
  .btn();
  color: #e16712;
  background: rgba(231, 158, 109, .33)
}

.disabledBtn {
  .btn();
  color: #d8d9de;
  background: #fff;
}


.run-circle(@dura: 2s) {
  animation: circle @dura linear infinite;
}

@keyframes circle {
  0% {
    transform: rotateZ(0deg);
  }

  100% {
    transform: rotateZ(360deg);
  }
}